| Abbreviation | Definition |
|---|---|
| ABADDON | Abadd???n |
| ABADE | Assistance in Building Afghanistan by Developing Enterprises |
| ABAI | All Boundaries Are Imaginary |
| ABAIT | Adaptive Behavior Assessment and Intervention Tool |
| ABAJUR | Abajures |
| ABAKA | Anonymous Batch Authenticated and Key Agreement |
| ABAL | Aims Bounds Aids Limitations |
| ABAL | Anti Bullying Advice Line |
| ABAN | Agent Based Active Network |
| ABAN | Arch Builders Across Nations |
| ABAN | Argyll and Bute Advice Network |
| ABAN | aronic Business Angel Network |
| ABANDON | abandoned |
| ABANDON | abandoning |
| ABANDONED | abandoning |
| ABANDONED | Abandonment |
| ABANDONEE | Abandonn?? |
| ABAP | Advances Business Application Programming |
| ABAQ | Albuquerque Bernalillo Air Quality |
| ABAS | Adaptive Behavior Assessment System |